.top{
    height:100px;
    background-color: #fff;
}
.bottom{
    height:150px;
    background-color: #fff;
    font-family: "microsoft yahei";
    text-align: center;
    line-height: 150px;
    font-size: 12px;
}
.middle{
    background: url("../img/mainbg.png") center center;
    background-size: 100% 100%;
    position: relative;
}
.login-box{
    width:420px;
    height:460px;
    margin-top:-230px;
    margin-left:-220px;
    background: url("../img/loginbg.png") no-repeat;
    position: absolute;
    top:50%;
    left:50%;
}
.login-form{
    width: 350px;
    margin: 173px 0 0 91px;
}
.login-input{
    height:26px;
    line-height: 26px;
    border-radius: 3px;
    width:250px;
    display: block;
    border: 1px solid #ccc;
}
.forget-psd{
    display: block;
    float: right;
    color: #cc8c18;
    margin-right: 97px;
    font-size: 12px;
}
.login-btn{
    width:250px;
    height:35px;
    line-height: 35px;
    background: #2D71FA;
    border-radius: 3px;
    color:#fff;
    border:none;
    margin-top: 10px;
    box-shadow: 1px 5px 8px #ADADAD;
}
.login-btn:active{
    background: #0D59F3;
}